ui.c

   1
   2 /*
   3  * $Id$
   4  *
   5  * by JH <jheinonen@users.sourceforge.net>
   6  *
   7  * Copyright (C) Jaakko Heinonen
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include <string.h>
  13 #include <unistd.h>
  14 #include <fcntl.h>
  15 #include <signal.h>
  16 #include <ctype.h>
  17 #include "abook.h"
  18 #include "ui.h"
  19 #include "edit.h"
  20 #include "database.h"
  21 #include "list.h"
  22 #include "misc.h"
  23 #include "options.h"
  24 #include "filter.h"
  25 #ifdef HAVE_CONFIG_H
  26 #       include "config.h"
  27 #endif
  28 #ifdef HAVE_TERMIOS_H
  29 #       include <termios.h>
  30 #else
  31 #       ifdef HAVE_LINUX_TERMIOS_H
  32 #               include <linux/termios.h>
  33 #       endif
  34 #endif
  35 #ifdef HAVE_SYS_IOCTL_H
  36 #       include <sys/ioctl.h>
  37 #endif
  38
  39 #include "abook_rl.h"
  40
  41 /*
  42  * external variables
  43  */
  44
  45 extern int items, curitem;
  46 extern char *datafile;
  47
  48 extern int alternative_datafile;
  49
  50 /*
  51  * internal variables
  52  */
  53
  54 bool ui_initialized = FALSE;
  55
  56 bool should_resize = FALSE;
  57 bool can_resize = FALSE;
  58
  59 WINDOW *top = NULL, *bottom = NULL;
  60
  61
  62
  63 static void
  64 init_windows()
  65 {
  66         top = newwin(LIST_TOP - 1, COLS, 0, 0);
  67
  68         bottom = newwin(LINES - LIST_BOTTOM, COLS, LIST_BOTTOM, 0);
  69 }
  70
  71 static void
  72 free_windows()
  73 {
  74         delwin(top);
  75         delwin(bottom);
  76 }
  77
  78
  79 #ifdef SIGWINCH
  80 static void
  81 resize_abook()
  82 {
  83 #ifdef TIOCGWINSZ
  84         struct winsize winsz;
  85
  86         ioctl (0, TIOCGWINSZ, &winsz);
  87 #ifdef DEBUG
  88         if(winsz.ws_col >= MIN_COLS && winsz.ws_row >= MIN_LINES) {
  89                 fprintf(stderr, "Warning: COLS=%d, LINES=%d\n", winsz.ws_col, winsz.ws_row);
  90         }
  91 #endif
  92
  93         if(winsz.ws_col >= MIN_COLS && winsz.ws_row >= MIN_LINES) {
  94 #ifdef HAVE_RESIZETERM
  95                 resizeterm(winsz.ws_row, winsz.ws_col);
  96 #else
  97                 COLS = winsz.ws_col;
  98                 LINES = winsz.ws_row;
  99 #endif
 100         }
 101
 102         should_resize = FALSE;
 103         close_list(); /* we need to recreate windows */
 104         init_list();
 105         free_windows();
 106         init_windows();
 107         refresh_screen();
 108         refresh();
 109 #endif /* TIOCGWINSZ */
 110 }
 111
 112
 113 static void
 114 win_changed(int i)
 115 {
 116         if( can_resize )
 117                 resize_abook();
 118         else
 119                 should_resize = TRUE;
 120 }
 121 #endif /* SIGWINCH */
 122
 123
 124 int
 125 is_ui_initialized()
 126 {
 127         return ui_initialized;
 128 }
 129
 130 void
 131 ui_init_curses()
 132 {
 133         if(!is_ui_initialized())
 134                 initscr();
 135         cbreak();
 136         noecho();
 137         nonl();
 138         intrflush(stdscr, FALSE);
 139         keypad(stdscr, TRUE);
 140 }
 141
 142 int
 143 init_ui()
 144 {
 145         ui_init_curses();
 146 #ifdef DEBUG
 147         fprintf(stderr, "init_abook():\n");
 148         fprintf(stderr, "  COLS = %d, LINES = %d\n", COLS, LINES);
 149 #endif
 150         if( LINES < MIN_LINES || COLS < MIN_COLS ) {
 151                 clear(); refresh(); endwin();
 152                 fprintf(stderr, "Your terminal size is %dx%d\n", COLS, LINES);
 153                 fprintf(stderr, "Terminal is too small. Minium terminal size "
 154                                 "for abook is "
 155                                 "%dx%d\n", MIN_COLS, MIN_LINES);
 156                 return 1;
 157         }
 158
 159 #ifdef SIGWINCH
 160         signal(SIGWINCH, win_changed);
 161 #endif
 162
 163         init_list();
 164         init_windows();
 165
 166         ui_initialized = TRUE;
 167
 168         return 0;
 169 }
 170
 171 void
 172 close_ui()
 173 {
 174         close_list();
 175         free_windows();
 176         clear();
 177         refresh();
 178         endwin();
 179
 180         ui_initialized = FALSE;
 181 }
 182
 183
 184 void
 185 headerline(char *str)
 186 {
 187         werase(top);
 188
 189         mvwhline(top, 1, 0, UI_HLINE_CHAR, COLS);
 190
 191         mvwprintw(top, 0, 0, "%s | %s", PACKAGE " " VERSION, str);
 192
 193         refresh();
 194         wrefresh(top);
 195 }
 196
 197
 198 void
 199 refresh_screen()
 200 {
 201 #ifdef SIGWINCH
 202         if( should_resize ) {
 203                 resize_abook();
 204                 return;
 205         }
 206 #endif
 207         clear();
 208
 209         refresh_statusline();
 210         headerline(MAIN_HELPLINE);
 211         list_headerline();
 212
 213         refresh_list();
 214 }
 215
 216
 217 int
 218 statusline_msg(char *msg)
 219 {
 220         int c;
 221
 222         clear_statusline();
 223         statusline_addstr(msg);
 224         c = getch();
 225 #ifdef DEBUG
 226         fprintf(stderr, "statusline_msg(\"%s\")\n", msg);
 227 #endif
 228         clear_statusline();
 229
 230         return c;
 231 }
 232
 233 void
 234 statusline_addstr(char *str)
 235 {
 236         mvwaddstr(bottom, 1, 0, str);
 237         refresh();
 238         wrefresh(bottom);
 239 }
 240
 241 char *
 242 ui_readline(char *prompt, char *s, int limit, int use_completion)
 243 {
 244         int y, x;
 245
 246         mvwaddstr(bottom, 1, 0, prompt);
 247         //mvwaddstr(stdscr, LINES - 1, 0, prompt);
 248
 249         /*
 250          * FIXME: stdscr shoulnd't be used ???
 251          */
 252 //      getyx(stdscr, y, x);
 253         getyx(bottom, y, x);
 254
 255         return abook_readline(bottom, y, x, s, limit, use_completion);
 256 }
 257
 258 int
 259 statusline_ask_boolean(char *msg, int def)
 260 {
 261         int ret;
 262         char *msg2 = strconcat(msg,  def ? " (Y/n)?" : " (y/N)?", NULL);
 263
 264         statusline_addstr(msg2);
 265
 266         free(msg2);
 267
 268         switch( tolower(getch()) ) {
 269                 case 'n':
 270                         ret = FALSE;
 271                         break;
 272                 case 'y':
 273                         ret = TRUE;
 274                         break;
 275                 default:
 276                         ret = def;
 277                         break;
 278         }
 279
 280         clear_statusline();
 281
 282         return ret;
 283 }
 284
 285
 286 void
 287 refresh_statusline()
 288 {
 289         werase(bottom);
 290
 291         mvwhline(bottom, 0, 0, UI_HLINE_CHAR, COLS);
 292
 293         refresh();
 294         wrefresh(bottom);
 295 }
 296
 297
 298 char *
 299 ask_filename(char *prompt)
 300 {
 301         char *buf = NULL;
 302
 303         clear_statusline();
 304
 305         buf = ui_readline(prompt, NULL, -1, 1);
 306
 307         return buf;
 308 }
 309
 310 void
 311 clear_statusline()
 312 {
 313         wmove(bottom, 1, 0);
 314         wclrtoeol(bottom);
 315         wrefresh(bottom);
 316         refresh();
 317 }
 318
 319 /*
 320  * help
 321  */
 322
 323 #include "help.h"
 324
 325 void
 326 display_help(int help)
 327 {
 328         int i;
 329         char **tbl;
 330         WINDOW *helpw;
 331
 332         switch(help) {
 333                 case HELP_MAIN:
 334                         tbl = mainhelp;
 335                         break;
 336                 case HELP_EDITOR:
 337                         tbl = editorhelp;
 338                         break;
 339                 default:return;
 340         }
 341
 342         helpw = newwin(LINES - 5, COLS - 6, 2, 3);
 343         erase();
 344         headerline("help");
 345
 346         for( i = 0; tbl[i] != NULL; i++) {
 347                 waddstr(helpw, tbl[i]);
 348                 if( ( !( (i+1) % (LINES-8) ) ) ||
 349                         (tbl[i+1] == NULL) ) {
 350                         refresh();
 351                         wrefresh(helpw);
 352                         refresh_statusline();
 353                         if(statusline_msg("Press any key to continue...")
 354                                         == 'q')
 355                                 break;
 356                         wclear(helpw);
 357                 }
 358         }
 359
 360         clear_statusline();
 361         delwin(helpw);
 362 }
 363
 364 /*
 365  * end of help
 366  */
 367
 368 extern char *selected;
 369 extern int curitem;
 370
 371 void
 372 get_commands()
 373 {
 374         int ch;
 375
 376         for(;;) {
 377                 can_resize = TRUE; /* it's safe to resize now */
 378                 hide_cursor();
 379                 if( should_resize )
 380                         refresh_screen();
 381                 ch = getch();
 382                 show_cursor();
 383                 can_resize = FALSE; /* it's not safe to resize anymore */
 384                 switch( ch ) {
 385                         case 'q': return;
 386                         case 'Q': print_stderr(selected_items() ?
 387                                                   -1 : list_current_item());
 388                                   return;
 389                         case '?':
 390                                   display_help(HELP_MAIN);
 391                                   refresh_screen();
 392                                   break;
 393                         case 'a': add_item();           break;
 394                         case '\r': edit_item(-1);       break;
 395                         case KEY_DC:
 396                         case 'd':
 397                         case 'r': ui_remove_items();    break;
 398                         case 12: refresh_screen();      break;
 399
 400                         case 'k':
 401                         case KEY_UP: scroll_up();       break;
 402                         case 'j':
 403                         case KEY_DOWN: scroll_down();   break;
 404                         case 'K':
 405                         case KEY_PPAGE: page_up();      break;
 406                         case 'J':
 407                         case KEY_NPAGE: page_down();    break;
 408
 409                         case 'g':
 410                         case KEY_HOME: goto_home();     break;
 411                         case 'G':
 412                         case KEY_END: goto_end();       break;
 413
 414                         case 'w': save_database();
 415                                   break;
 416                         case 'l': ui_read_database();   break;
 417                         case 'i': import_database();    break;
 418                         case 'e': export_database();    break;
 419                         case 'C': ui_clear_database();  break;
 420
 421                         case 'o': ui_open_datafile();   break;
 422
 423                         case 's': sort_database();      break;
 424                         case 'S': sort_surname();       break;
 425
 426                         case '/': ui_find(0);           break;
 427                         case '\\': ui_find(1);          break;
 428
 429                         case ' ': if(curitem >= 0) {
 430                                    selected[curitem] = !selected[curitem];
 431                                    ui_print_number_of_items();
 432                                    refresh_list();
 433                                   }
 434                                 break;
 435                         case '+': select_all();
 436                                   refresh_list();
 437                                 break;
 438                         case '-': select_none();
 439                                   refresh_list();
 440                                 break;
 441                         case '*': invert_selection();
 442                                   refresh_list();
 443                                  break;
 444                         case 'A': move_curitem(MOVE_ITEM_UP);
 445                                 break;
 446                         case 'Z': move_curitem(MOVE_ITEM_DOWN);
 447                                 break;
 448
 449                         case 'm': launch_mutt(selected_items() ?
 450                                                   -1 : list_current_item());
 451                                   refresh_screen();
 452                                   break;
 453
 454                         case 'p': ui_print_database(); break;
 455
 456                         case 'u': launch_wwwbrowser(list_current_item());
 457                                   refresh_screen();
 458                                   break;
 459                 }
 460         }
 461 }
 462
 463
 464 void
 465 ui_remove_items()
 466 {
 467         if(list_is_empty())
 468                 return;
 469
 470         if(statusline_ask_boolean("Remove selected item(s)", TRUE))
 471                 remove_selected_items();
 472
 473         clear_statusline();
 474         refresh_list();
 475 }
 476
 477 void
 478 ui_clear_database()
 479 {
 480         if(statusline_ask_boolean("Clear WHOLE database", FALSE)) {
 481                 close_database();
 482                 refresh_list();
 483         }
 484 }
 485
 486 void
 487 ui_find(int next)
 488 {
 489         int item;
 490         static char findstr[MAX_FIELD_LEN];
 491         int search_fields[] = {NAME, EMAIL, NICK, -1};
 492
 493         if(next) {
 494                 if( !*findstr )
 495                         return;
 496         } else {
 497                 char *s;
 498                 clear_statusline();
 499                 s = ui_readline("/", findstr, MAX_FIELD_LEN - 1, 0);
 500                 strncpy(findstr, s, MAX_FIELD_LEN);
 501                 refresh_screen();
 502         }
 503
 504         if( (item = find_item(findstr, curitem + !!next,
 505                                         search_fields )) >= 0 ) {
 506                 curitem = item;
 507                 refresh_list();
 508         }
 509
 510 }
 511
 512
 513 void
 514 ui_print_number_of_items()
 515 {
 516         char *str = mkstr("     " "|%3d/%3d", selected_items(), items);
 517
 518         mvaddstr(0, COLS-strlen(str), str);
 519
 520         free(str);
 521 }
 522
 523 void
 524 ui_read_database()
 525 {
 526         if(items > 0)
 527                 if(!statusline_ask_boolean("Your current data will be lost - "
 528                                 "Press 'y' to continue", FALSE))
 529                         return;
 530
 531         load_database(datafile);
 532         refresh_list();
 533 }
 534
 535
 536 void
 537 ui_print_database()
 538 {
 539         FILE *handle;
 540         char *command = options_get_str("print_command");
 541         int mode;
 542
 543         if( list_is_empty() )
 544                 return;
 545
 546         statusline_addstr("Print All/Selected/Cancel (a/s/C)?");
 547
 548         switch( tolower(getch()) ) {
 549                 case 'a':
 550                         mode = ENUM_ALL;
 551                         break;
 552                 case 's':
 553                         if( !selected_items() ) {
 554                                 statusline_msg("No selected items");
 555                                 return;
 556                         }
 557                         mode = ENUM_SELECTED;
 558                         break;
 559                 default:
 560                         clear_statusline();
 561                         return;
 562         }
 563
 564         clear_statusline();
 565
 566         if( ! *command || (handle = popen(command, "w")) == NULL)
 567                 return;
 568
 569         fexport("text", handle, mode);
 570
 571         pclose(handle);
 572 }
 573
 574
 575 void
 576 ui_open_datafile()
 577 {
 578         char *filename;
 579
 580         filename = ask_filename("File to open: ");
 581
 582         if( !filename || ! *filename) {
 583                 free(filename);
 584                 refresh_screen();
 585                 return;
 586         }
 587
 588         if( options_get_int("autosave") )
 589                 save_database();
 590         else if(statusline_ask_boolean("Save current database", FALSE))
 591                 save_database();
 592
 593         close_database();
 594
 595         load_database(filename);
 596
 597         if( items == 0 ) {
 598                 statusline_msg("Sorry, that specified file appears not to be a valid abook addressbook");
 599                 load_database(datafile);
 600         } else {
 601                 free(datafile);
 602                 datafile = strdup(filename);
 603         }
 604
 605         refresh_screen();
 606         free(filename);
 607
 608         alternative_datafile = TRUE;
 609 }